feat(agent): add ToolTag-based tags to all agent tools; implement tags.py for unified tool capability tagging

app/agent/tools/impl/query_schedulers.py

@@ -6,6 +6,7 @@ from typing import Optional, Type
 from pydantic import BaseModel, Field
 
 from app.agent.tools.base import MoviePilotTool
+from app.agent.tools.tags import ToolTag
 from app.log import logger
 
 
@@ -16,6 +17,10 @@ class QuerySchedulersInput(BaseModel):
 
 class QuerySchedulersTool(MoviePilotTool):
     name: str = "query_schedulers"
+    tags: list[str] = [
+        ToolTag.Read,
+        ToolTag.Scheduler,
+    ]
     description: str = "Query scheduled tasks and list all available scheduler jobs. Shows job status, next run time, and provider information."
     args_schema: Type[BaseModel] = QuerySchedulersInput